Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when you can plant dipladenia by checking out the USDA zone info for North Manchester.

Planting Calendar for Dipladenia

Frost tolerance for dipladenia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since dipladenia are not cold tolerant you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant dipladenia in North Manchester is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant dipladenia and expect a good harvest is probably August. If you wait any later than that and your dipladenia may not have a chance to fully mature. If you are starting your dipladenia indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in North Manchester. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for North Manchester is not always accurate the actual date of last frost changes from year to year. Since half of the time in North Manchester you get surprised by a frost after April 15 be ready to protect your dipladenia if you have one of those late frosts.

USDA Zone Info for North Manchester

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in North Manchester

You may be interested in your other planting guides for North Manchester.